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Lab Test Dictionary

Heparin-Induce Platelet Antibody with Reflex to SRA, Unfractionated Heparin (15334)

Methodology

Immunoassay (IA)

Synonyms

Serotonin Release Assay; Heparin Associated Platelet Ab; Heparin-Induced Thrombocytopenia; HIT

Specimen Type

Serum

Performing Lab

Quest Diagnostics San Juan Capistrano

Epic ID

Other Reference Test

Collection Information

Specimen Required

1-4 mL Blood

Container Type

Red Top (No Additive)

Processing Information - Lab Use Only

Transport Temperature

Frozen-Only

Specimen Stability

Room Temp: Unacceptable; Refrigerated: Unacceptable; Frozen: 6 Months

Rejection Criteria

Gross hemolysis; Lipemic; Icteric; Serum separator tube (SST)

Test Volume Required

1 mL Serum (x2)

Minimum Test Volume

0.5 mL Serum (x2)

Processing Instructions

Centrifuge red-top tube 15 minutes at approximately 1500 g as soon as possible after clotting.

Included Tests

If Heparin-Induced Platelet Antibody is positive and patient O.D. is > or =0.400, Serotonin Release Assay (SRA), Unfractionated Heparin will be performed at an additional charge (CPT code(s): 86022)